Abstract
Case 1; A 35-year-old female, Case 2 ; A 63-year-old female, Case 3; A 75-year-old female. They visited our hospital complaining of symptoms of cystitis. They underwent cystoscopy which revealed a single solitary tumor on the posterior wall of the bladder. Fecaluria was noted at the time of admission in cases 1 and 2, but cystography failed to identify the presence of a fistula. In all cases, diagnosis of sigmoid colon cancer and its infiltration to the bladder was made by CT, MRI, barium enema and biopsy by colon fiberscopy. Sixty-seven cases of sigmoid colon cancer reported by urologists were collected from the Japanese literature. The average age of the patients was 56.1 with males predominant. Vesical irritability was the most frequent symptom. Cystosopy revealed a single solitary tumor, seen most frequently on the posterior wall.
